To find multiple choice. And the half life of Ce-143.
Answer to Problem 50E
The half life of Ce-143 is 30 hours. Option (C).
Explanation of Solution
Given information: A sample of Ce- 143 loses 99% of its radioactive matters in 199 hours.
(A) 4 hours
(B) 6 hours
(C) 30 hours
(D) 100.5 hours
(E) 143 hours
Calculation: The half life of Ce-143is obtained as,
Use the half life formula
Let
Taking log both sides,
Hence, the half life of Ce-143 is 30 hours. Option (C).
Chapter 7 Solutions
Calculus: Graphical, Numerical, Algebraic: Solutions Manual
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